An MSLD is a simple, two part, self managed Alert & Locate system used to provide safety cover for virtuallyany application on, under or around water. An MSLD system is normally made up of two components.

ALERTING UNIT 'SOS' transmitter worn on the person (PLB)

BASE UNIT monitor/receiver/alarm/locator

What is the range when using the standard AU9 100mW or Extended Range AU9 500mW